[Enchantment] - Use selector (from 0 to 16) for GroupID for *_loot_template and increase the colour pallete up to 16

[TheSCREWEDSoftware]

We currently (keira) supports 1 to 9 to get colours, it's suggested that this shouldn't go above 16.

Note: The client can only display 16 items in the loot windows, this includes gold. Therefore it is not recomended to use more than 16 groups.

Selector makes sure the user doesn't use non intended values.

[TheSCREWEDSoftware]

.group-1,
.group-2,
.group-3,
.group-4,
.group-5,
.group-6,
.group-7,
.group-8,
.group-9,
.group-10,
.group-11,
.group-12,
.group-13,
.group-14,
.group-15,
.group-16 {

.group-1  { background-color: #0f7200; }
.group-2  { background-color: #a70000; }
.group-3  { background-color: #0014d2; }
.group-4  { background-color: #936200; }
.group-5  { background-color: #5900b1; }
.group-6  { background-color: #000000; }
.group-7  { background-color: #740090; }
.group-8  { background-color: #389c01; }
.group-9  { background-color: #ac00a3; }

/* New Colours */
.group-10 { background-color: #005f73; }
.group-11 { background-color: #9b2226; }
.group-12 { background-color: #3a86ff; }
.group-13 { background-color: #ff006e; }
.group-14 { background-color: #8338ec; }
.group-15 { background-color: #fb8500; }
.group-16 { background-color: #2a9d8f; }